A CI/CD pipeline pushing a schema change to production failed at 2 AM with ORA-00054. The release engineer opened a P1 ticket. The on-call DBA identified the blocker and resolved it in under 3 minutes. The issue was not a bug, not a configuration problem, and not an application defect. It was a classic lock Read more about ORA-00054: Resource Busy — How to Find and Kill the Blocking Session[…]